Nail-extracting apparatus



, A. PIASER NAIL EXTRACTING APPARATUS Filed Dec. 18, 1919 2 Sheets-Sheet1 2H1- Av Fatented July 17, 1923.

ABRAHATE INC, 0F ASTORIA, NEW YORK, A CORPORATION OF NEW YORK.

NAIL-EXTRACTING APPARATUS.

Application filed December 18, 1919. SerialNo. 345,854.

To all whom it may concern:

Be it known that I, ABRAHA PIASER, residing at Elmhurst, county ofQueens, and State of New York, have invented certain new and usefull'mprovementsin a llail-lilxtracting Apparatus, of which the followingis a specification.

This inventionrelates to a new and improvedmachine adapted for use inthe man ufacture of boots and shoes, and one of the objects of theinvention is to provide a machine which will automatically pull orextract from the last or otherparts of the shoe, the nails or bradswhich are required to be temporarily employed in the production of theshoe, such for instance as the nails or brads as are employed to attachthe outer and inner soles to the wooden last about which the shoe isformed.

Hithertoin the manufacture of shoes it has been necessary to employlaborfor the purpose of manually extracting thenails or brads usedtemporarily as above stated in the manufacture of shoe. By the presentinvention, however, a shoe manufacturer is able to dispense with manuallabor in performing this operation, and to substitute the machine of thepresent invention, thereby effecting a great saving of time and labor inthemanufacture of boots and shoes.

Other objects and aims of the invention, more or less specific thanthose referred to above,'will be in part obvious and in part pointedoutin the course of the following description of the elements,combinations, ar} rangements of parts'and'applications of principles,constituting the invention; and

the scope of protection contemplated will.

tion ofthe arrows.

Figure 4 is a sectional view taken on the line 44 of Figure 1, lookingin the direction of the arrows and Figure 5 is a sectional 'view takenon the line 55 of Figure 1, looking in the direction of the arrows.

Referring now to the drawings, wherein FIASER, or ELMHUBST, nnw roar;nssrsnon 'ro ROSENWASSER 1330s., I

similar reference characters refer to similar means of the belt 8, froma suitable source of power, said pulley 7 being loosely mounted upon adrive shaft 9, with which itis inter mittently connected by means whichwill now be described. The pulley and shaft may be connected anddisconnected by means under the control of the operator.

The shaft-9 is provided with an integrally formed collar 10,,locatedadjacent the pulley 7, said collar and the shaft 9 formlnga recess 11,in which travels a pin 12, the shank 13 of which is threaded into anaperture provided in the hub of the pulley. The shaft 9 extends throughthe upper portion 1% of the frame and at its end is provided with aneccentric 15, which works in a plate 16 to reciprocate the plunger block17, which carries certain of the operative parts of the apparatus. I I Ia It will be noted that uponeach rotation of the shaft 9 the plungerblock 1'1 will be given a complete reciprocation. Mounted to slide in agroovelS, provided in the shaft 9, is a connecting pin 19 normallyurgedto outward movement into the recess 11 .by means of a plunger pin 20,actuated as by means of a spring 21 said pin and spring being located ina recess which communicates with the groove 20 in which slides aconnecting pin 19. a

g It will be noted that when the pin l9 is permitted to slide outwardlytheend thereof will be thrust into the path of the pin 12 carried by thepulley 7, whereby said pulley andshaft 9 will be operatively connected.

Pin 19 is normally held in thejretracted position by its engagement withtheend of a cam levcr 22, pivotally mounted upona post 23, carried'bythe frame of the machine, the cam portion 24 thereof engaging with a camsurface 25 formed on the forward face of a lug 26, extending laterallyof the pin 19, The lever arm ,22uis actuatedby a rod 27, guided in abracket 28, and normally held in position, as shown, by means of aspring 29, which operates between the bracket 28 and a shoulder 30formed on said pin, the pin 27 being connected at 31 to the cam lever22.

lVith the parts in the position shown In Figure 1 of the drawings, itwill be noted that the cam portion 24 of the lever 22, engaging the camsurface 25 of the connecting pin 19, holds the latter pin in theposition shown in the drawings, against the stress of the plunger spring21. This permits the pulley 7 to rotate freely without affecting any ofthe mechanism of the machine.

The lower end 32 of the rod 27 is connected at 33 with one end of anoperating lever 34, the latter being pivoted as at 35 to the block 5.The opposite end 36 of the lever 34 is provided with a lateral extension37 so formed as to be engaged with the sole of a shoe.

Clamped as at 38 to a block 39, carried by the plunger block 17, is anarm 40 of a gripper device to which the opposite arm 41 is pivotallyattached at 42. The lower ends of the members 40 and 41 are turnedinwardly so as to form gripper fingers 42 and 43, which are adapted toengage with the nail or brad to be removed from the sole of the shoe, orother article upon which the machine is adapted to operate.

The reference numeral 44 denotes an outstanding arm secured to the frameof the machine, as at 45, the end of which carries a roller 46 adaptedto co-operate with a cam portion 47 0f the arm 41 of the gripper device,so that when the plunger block 17 is lifted by the eccentric 15, theroller 46 remaining stationary, will cause the arms 40 and 41 of thegripper device to separate, forcing the gripper members 42 and 43 intoengagement with the nail or brad which is to be extracted from the soleof the shoe, or other article. The roller 46 rides upon a plane surface48 of the arm of the gripper device during this operation. Fastened tothe frame of the machine, at 49. and extending forwardly therefrom, is astop arm 50,.

the function of which is to limit the upward movement of the sole orheel of a boot or shoe when the brads or nails thereof are engaged bythe gripping device during the operation of extracting them.

The reference numeral 51 denotes the sole of a shoe containing the nailsor brads which are to be extracted therefrom, held by the hand of theoperator, indicated at 52, in a position to be operated upon, and thereference numeral 53 denotes a receptacle into which the nails or bradsare discharged when they have been extracted from the sole or heel of aboot or shoe. A retractile spring 54 operates to pull the ends of thearms 40 and 41 toward each other so as normally to separate the grippingfingers 42 and 43.

Having thus described the construction of this embodiment of myinvention, the opera tion thereof, which should be largely understood,is as follows Assuming the parts to be in the position shown in Figure1, the operator engages the sole of the boot or shoe with the end 37 ofthe lever arm 36 with the nail or brad to be drawn located directlybeneath the gripper arm 42 and 43. The shoe is then moved up wardlypushing the lever arm 36 in a corresponding direction which compels adownward movement of the arm 27 and a swing ing movement of the cam 22.whereby the cam surface 24 thereof is disengaged from the opposing camsurfaces 25 of the locking pin 19. These parts being disengaged, thespring 21 acting through the plunger pin 20, forces the pin 19 forwardinto the path of the pin 12 carried by the pulley so that the latterwill engage the connecting pin 19 and compel a rotated movement of theshaft. The upward movement of the shoe has carried the nail or brad tobe drawn, between the gripper members 42 and 43, and the shaft 9 beingnow connected with its driving mechanism, the eccentric 15 will beretated to cause an upward movement of the plunger block 17, therebybodily moving the gripping device comprised by the arms 40 and 41upwardly, the roller 46 riding on the cam surface 47 of the arm 41,causing the gripping members 42 and to grip the nail or brad and extractthe same from the shoe or heel of the boot or shoe, inasmuch as theupward movement of the latter will be limited by its engagement with thearm 50.

When the parts are allowed to resume their normal positions, the leverarm 36 being forced downwardly by the spring 29 engaging with theshoulder 30 of the rod 27. the end of the cam 24 will be again thrown inthe path of the cam 25, thereby retractingthe connecting pin 19 from itsposition in engagement with the pin 12 of the pulley 7, thusautomatically disconnecting the operative parts of the mechanism. 7 i

It will therefore be seen that I have provided a device well adapted toattain, among others, all the ends and objects pointed out in anexceedingly simple and efiicient manner, by means of which the manuallabor hitherto necessary in the operation of the manufacture of shoes isentirely eliminated, my improved machine working substantiallvautomatically andtaking the place of several manual laborers, performingthe work in an expeditious manner, and effecting a saving of the brads,which drop into the receptac e 53, and which can be again utilized toperform a similar function. i

As many changes could be made in this construction without departingfrom the scope of the following claims, it is intended that all mattercontained in the above description or shown in the accompanying shaft,said shaft and pulley drawing shall be interpreted as illustrative onlyand not in a limiting sense.

aving thus described my inve I claim as new and desire to secure byLetters Patent is: v

1. In a machine of the class described, the combination with grippingmeans, of means for operating said gripping means including a shaft,driving means normally disconnected from said last mentioned means onsaid shaft to establish an operative connection between said shaft andsaid driving means, and means adapted to be engaged and raised upwardlyby the work to actuatesaid connecting means whereby said grippingoperating means will be driven by said driving means. p

2. In a machine of the class described, the combination with a plunger,of a pair of opposed gripping members carried thereby, ashaft foroperatingsaid plunge-r, driving means mounted upon said shaft andnormally disconnected therefrom, means'carried by said shaft and adaptedto establish an operative connection between said shaft and said drivingmeans, and means adapted to be engaged and raised upwardly by the workto actuate said connecting means to operate said plunger 'to bodily movesaid gripping members, and means for causing a relative movement of saidgripping mem bers to close the latter.

3. In a machine of the class described, the combination with a plunger,of a pair of opposed nail gripping members carried by said plunger, ashaft adapted to operate said plunger, a pulley mounted upon said beingnormally disconnected, means carried by said shaft adapted to be movedinto position to connect the latter with said pulley, means normallyholding said last named means out of engagement with said pulley, andmeans adapted to be engaged by the work for moving said last named meansto such position that the means upon the shaft will be engaged by thepulley, whereby movement of the shaft will effect an operation of saidplunger, and thereby of said gripping members, and means for causing anindependent relative movement of said gripping members when the same aremoved bodily by said plunger.

4. In a machine of the class described, the combination with a plunger,of a pair of nail gripping members carried thereby, a

shaft foroperating said plunger, a pulley loosely mounted upon saidshaft, said shaft and pulley being provided with a pair of opposed partsadapted when engagedto effect an operative connection between said shaftand pulley, means for moving the part carried by said shaft into thepath of the part carried by said pulley, means for nor mally holding thepart carried by the shaft ntion what f 1 &

out of engagement with the part carried by the pulley, and means adaptedto be en gaged by the work for moving thepartcarri'ed by the shaft, intoengagementwith the part carried by the pulley, said shaft whenoperatively connected with said pulley being; adapted to operate saidplunger, to move said nail grippingmeans bodily from the work, and meansfor causing a relative movement of said. gripping means. to cause thelatter to grip and extract a nail carried by the work.

In 'a machine of the class described, the combination with a pair'o't'gripping members, i said gripping members being bodily movable andalso relatively movable, of a movable support for said gripping members,means for -.io;*ing said support, andmcans adapted to be engaged by thework for effecting an operation of said last mentioned means-theconstruction and arrangement being such that said gripping members willbe moved to and from the work, and means for moving said gripping,members toward each" other during their bodily movement in onedirection. i

6. i In a machine of the class described, the combinationwith a movablesupport of a pair of nail gripping members. carried thereby, means fordriving said support. to effect a bodily movement of said gripping meansto and from' the work, means for moving said grippingmembers toward eachother during the movement of said supportin one direction, and from eachother during a movement of said support in the opposite direction, andmeans projecting below said nail-gripping members and having aportionarranged to engage the work and to be moved upwardly by thework'thereby actuating the said support-driving means.

7. In a machine of the class described, the

combination with a movable support, .of a gripping device carriedthereby, said grip ping device comprising a pair of opposed pivotallymounted arms, the lower ends of which are provided with grippingfingers.

said support being adapted when operated to move said gripping memberstoward and from the work, means for moving said gripping members towardand from each other during their movement toward and from the work, andmeans adapted to be engagedby the work for effecting a reciprocatorymovement of said support. i

8. In a machine of the class described, the combination of reciprocatingmember, of driving mechanism for reciprocating the said member, a loosepower-operated pulley, means engaging the workbclow the said grippingdevice wherebyan upward movement of the work against the said engagingmeans connects the said pulley and the said driving mechanism, agripping device carried by said member comprising a pair of opposedarms, pivoted together intermediate their ends and having dependinggripping fingers adapted to be engaged with a nail carried by the work,means for causing said support to move said gripping deviceto and fromthe work, and means for causing a relative movement of said arms duringtheir bodily movement, to cause their gripping lingers to engage with anail carried by the work and caused to extract the same there from. r

9. In a machine of the class described the combination with a nailgripping device comprising a pair of lever arms pivoted in termediatetheir ends and having depending gripping fingers located in position toengage a nail carried by the work, of means for effecting a bodilymovement of said gripping device toward and from the work and foreffecting a relative movement of said members to cause said grippingmembers to engage a nail andextract it from the work, a driven shaft,means on said shaft to connect said shaft operatively with said firstnamed means, and means extending below the gripping device andconstructed to engage and to be moved upwardly by the work to actuatesaid (JOHIIQCtiHg means.

10. In a machine of the class described, the combination of a movablecarrier, a gripping device supported thereon, said gripping devicecomprising a pair of lever arms pivoted intermediate their ends andhavingdepending gripping fingers, driving means for reciprorating saidmovable carrier a loose powe -driven pulley, means constructed to engagethe work and to be moved upwardiy by the work for effecting theconnection ot the pulley and said driving means and means for effectinga gripping action between said gripping fingers during the movement ofsaid carrier.

11 In a machine of the class described, the combination of a movablecarrier, a gripping device supported thereon" said gripping device comn'ising a pair of lever arms pivoted intermediate their ends andl'raving depending gripping; fingers, driving-f means for reciprocatingsaid movable carrier, means for effecting a gripping action between saidgripping fingers during the movement of said carrier, a shaft adapted toreciprocate said carrier, constantly driven neans mounted upon saidshaft and normally disconnectedtherefrom, and means adapted to beengaged by the work for ct tectine; a driving engagement between saidconstantly driven means and said shaft.

In testimony whereof I alfix my signature.

' A. PIASER.

Witness:

EMMA VTEINBERG.

